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At present, most of power supply systems for intracorporeal medical instrumentations adopt internal power storage mode or transcutaneous energy transmission system. However, both patterns have some disadvantages: internal power storage mode cannot supply long-term power so that this mode limits the continuity of total system; infection is easily generated in a transcutaneous energy transmission system...
The objective of this study was to examine the extent of trauma to erythrocytes of blood caused by an artery blood pump for a functionally total artificial heart after extended time in vitro pumping. A closed simulative circulative rig determined values of hemodynamic performance parameters. In the experiment: Bank-stored blood (400 ml) was subjected to pumping in the simulative circulative rig, with...
This paper presents a blood pump control algorithm based on maintaining the constant differential pressure (dp) between the pump inlet and outlet. The algorithm produces not only pulsatile blood flow synchronized with cardiac ejection, which promotes recovery effort of cardiac muscle. According to the relationship of blood pump flow rate, the pump speed and dp, the computer simulations are conduct...
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